International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference EN 62056-31:2000
Title Electricity metering - Data exchange for meter reading, tariff and load control - Part 31: Use of local area networks on twisted pair with carrier signalling
Project Number 12149
Abstract/Scope Describes two new architectures for local bus data exchange with stations either energized or not. For non-energized stations, the bus supplies energy for data exchange. The first architecture completes the base protocol (EN 61142) with remote transfer services. The second architecture allows operation of DLMS services using the same physical medium and the same physical layer. This complete compatibility guarantees the possibility of using EN 61142 and IEC 62056-31 equipment on the same bus.


Current Stage code 6060
Current Stage code date 2000-01-31
Current Stage code deadline 2000-10-01
Deadline date for vote  


Mandate(s) M/441; M/490
Order Voucher  


IEC Technical Body IEC/TC 13
Reference Document IEC 62056-31:1999 (EQV)
ICS 33.040.40 - Data communication networks
91.140 - Installations in buildings
Keywords Metering; Meter reading; Tariff; Load control; Local area network
Note EN following parallel vote * Supersedes EN 61142 * Superseded by EN 62056-31:2014
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2000-01-31 2000-10-01 export to doc file  EN
5099 1999-12-01 2000-04-01  
5062 1999-10-21 1999-12-01  
5020 1999-06-25 1999-09-15  
4099 1999-06-21 1999-06-25  
4020 1998-05-01 1998-09-30  
3099 1998-04-27 1998-09-27  

Implementation Dates

date of Ratification (DOR) (1) 1999-12-01
date of Availability (DAV) (2) 2000-01-31
date of Announcement (DOA) (3) 2000-04-01
date of Publication (DOP) (4) 2000-10-01
date of Withdrawal (DOW) (5) 2002-12-01


Supersedes EN 61142:1993
Superseded by EN 62056-3-1:2014
Normative reference (6) EIA 485:1991
ISO/IEC 8482:1993
EN 61334-4-41:1996
IEC 62056-51:1998

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.